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From: sebor@my-deja.com
Subject: Re: friend lookup
Date: 1999/09/09
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In article <p6q3dwp2m7z.fsf@informatik.hu-berlin.de>,
  Martin von Loewis <loewis@informatik.hu-berlin.de> wrote:
>
> sebor@my-deja.com writes:
>
> > Can anyone point me to the section in the Standard that makes this
> > [il]legal?
>
> It is legal, according to 7.3.1.2, [namespace.memdef]/3:
>
> # If a friend declaration in a non�local class first declares a class
> # or function the friend class or function is a member of the
> # innermost enclosing namespace. The name of the friend is not found
> # by simple name lookup until a matching declara�tion is provided in
> # that namespace scope (either before or after the class declaration
> # granting friendship). If a friend function is called, its name may
> # be found by the name lookup that considers functions from
> # name�spaces and classes associated with the types of the function
> # arguments (3.4.2).
>
> You probably need to have 14.5.3, [temp.friend]/3:
>
> # A friend template may be declared within a class or class
> # template. A friend function template may be defined within a class
> # or class template, but a friend class template may not be defined
> # in a class or class template.
>
> Hope this helps,
> Martin
>

I was just pointed to 14.8.2.4, p4 - it would seem that the arguments,
in fact, cannot be deduced, do you agree?

Martin


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